| Added by |
 Steve
|
| Face value | 18p |
| Catalog code (Michel) | GB-W 33 |
| Catalog code (Scott) | GB-W MH32 |
| Catalog code | Yvert et Tellier GB 988 Stanley Gibbons GB W46 Unificato GB 988 |
| Series | Machin |
| Stamp colour | Violet Blue |
| Watermark | None |
| Stamp use | Definitive stamp |
| Issue date | 08/04/1981 |
| Designer | Arnold Machin / Jeffrey Matthews |
| Paper type | phosphor paper |
| Print technique | Offset lithography |
| Printed by | House of Questa |
| Perforation | comb 13¾ x 14¼ |
| Height | 24.00 mm |
| Width | 20.00 mm |
| Catalog prices | Used stamp $1.10 Unused stamp $1.10 |
